Method and machine for filling and wrapping packages



R. W. HOAG Feb. 23, 1954 METHOD AND MACHINE FOR FILLING AND WRAPPING PACKAGES Filed Aug. 22, 1952 Patented Feb. 23, 1954 UNITED STATES OFFICE TENT METHOD AND MACHINE FOR FILLING AND WRAPPING PACKAGES Application August 22, 1952, Serial N o. 305,834 anims. `(c1. 55s- 10) This invention relates to methods and machinery for lling and wrapping articles in general, and more specifically to the manufacture of shaker dispenser packets filled with granular or powdered materials. Such a dispenser packet is described and claimed in United States Patent No. 2,499,313, issued to me February 28, 195i). This present application embodies improvements over Patent No. 2,544,020, issued to me March 6, 1951.

One object of my invention is to provide a method of nlling and wrapping webs oi packets, at high speed, by a succession of operations.

Another object of my invention is to provide a machine for lling and wrapping webs oi packets by a sequence of operations.

With said objects in view, my invention con sists in the method and machine for iilling and wrapping webs of packets substantially as hereinafter described and claimed.

Of the accompanying drawings:

Figure 1 is a plan View of the machine.

Figure 2 is a iront View of Figure 1.

Figure 3 is a plan view of a section of the wrapping material with two webs of the packets to be wrapped positioned thereon and secured thereto.

Figure 4 is a section at 13@ of Figure 3.

Figure 5 is a section at 9 5 ci Figure 3.

Figure 6 is a section at ti-- of Figure 3.

Figure 7 is a partial section at 'i-l of Figure 3.

Similar reference characters indicate similar parts or features in all 0i the views.

It will aid toward an understanding oi 'the machine, and of the method of filling and wrapping webs of packets, to describe the web of wrapping material, and the webs of packets, and thereafter explain the action oi the machine as it operates to produce filled, wrapped packets.

Referring first to Figure 3, there is illustrated a web of paper wrapper material A, which usually carries printed matter on the surface that will form the outside surface of the packet wrapper. The iirst step in my method of iilling and wrapping packets consists in longitudinally slita ting the wrapper web A at the center i3 it is advanced, thus providing two wrapper webs C and D. A web oi partly formed corrugated container elements E is positioned on the wrapper web C, and a web oi partly formed corrugated container elements F is positioned on the wrapper web D. The margin Gl of wrapper web C is adhesively treated, and the margin H of web D is adhesively treated. The said margin G of wrap per web C is folded, pressed and secured against the adjacent margin of the corrugated container elements E, and the margin H of web D is folded, pressed and secured against the adjacent margin of the container elements F. This serves to close one of the two openings oi each of the container elements. The packet webs E and F are each longitudinally cut slightly at J and K respectively to provide means :for opening the packets for pouring out the contents of the completed packets. The two web assemblies are next turned 9G degrees from a horizontal position to a vertical position to receive the commodity to be packaged in the pockets or corrugatiom: of the webs of packets. The free, upwardly extending margins ci wrapper webs C and D are next adhesively treated and then folded, pressed and secured to the adjacent margins of packet webs E and F respectively. The duplex web assemblies are then transversally severed to provide individual packet units.

Referring to Figures 1 and 2 there is schematically illustrated a machine for producing nlled packets. The several mechanisms comprising the machine are mounted on a frame l.

The wrapper web A with two corrugated webs of packets E and F are advanced horizontally to slitting knife 2 secured to shaft 3 journalled in frame i. Also secured to sha-ft 3 are two knives 1l and 5 which serve to provide dispensing cuts L and M (Fig. 3) in the crown of each pocket of the webs E and F respectively. A roller 45 journalled in frame i serves to support the web A as it is advanced. The webs are next acted upon by an adhesive applying device which serves to apply a strip of adhesive to the top, adjacent margins G and l-I of webs C and D (Fig 3) respectively. The adhesive applying device comprises` an adhesive containing receptacle l secured to frame i. .A bracket il is supported by the receptacle l'. Rollers iii and li are coated with adhesive by contact with roller 9 which rotates in liquid adhesive contained in receptacle l. The said rollers i l act in the conventional manner to deposit a film of adhesive on the margins G and l-l oi webs C and D.

As the web assemblies advance a pair of folding bars 2 and i3 secured to frame i serve to fold the adhesively treated margins G and H of webs C and D over the corresponding margins of the corrugated webs E and F. Rollers lli secured to shaft i5 journalled in frame l act to roll and press the folded, adhesively treated margins of webs C and D against the corresponding margins of the corrugated container Webs E and F;

positioned with the open ends` of thefltesioffthe corrugated pockets of web E facing upwardlyat" an angle of 90 degrees fromahorizontal. to-.ver-v tical position and is advanced.horizontally-witl the free fiat surface of web C against guide r0l1`er- 2B secured to shaft 2i and journalled in frame I.

Both web assemblies are thenadvanced-"to 'passU under a commodity filling hopper '22 securedito.I

bracket 23 mounted on -irame l. Openings 24 are provided in the bottom of the hopper through which: the product to' `be vpackaged' passes tdwn.- war-diy. and. into the corrugatedpockets:of'the container webs as they pass under the'saidopenings. Areecivin'g. .bin25is positioned underlthe openings it in the hopper'22to catch the over'-4 fiow from Athe corrugated pockets of thewebs while thellingoperation is being. performed;

Th'etwo composite webs are next advanced fromV thcillingoperation andthe top .margins N and O of I'webs'C Aand D are then folded 'at right anglesk over the flutesof container webs E and F bythe action of'folding bars `255 and 2i respectively .secured'to frame i.' Adhesive is then' applied-t0 each of .the partly vin'nldedmarginsof .webs C and Dby glue wheelsZ secured to shaft 29 journalledin. glue pot 3o 'mounted uon framel l.. The com;

pjosite webs then advanceto pressure rollers 53| andjti secured to shafts 33 and .34respectively journalledin ira-melt, which serve tofold and;

rmly press the adhesively treated marginsof webs C and D. over the open ends Vof the ll'e'd' pockets oiv the container web. The iilled,- composite Webs are then advanced .to pass against guiderollers 35 and 35 respectivelyfsecuredto. The

shafts 3l and 38 journalled in frame'l.' composite webs are .each twisted back "90' -degrees to horizontal .position and advanced by` feedi' rollers ,39 secured to shafts 40 ,journalled in framet 1..., From the feed rollers iithe'V two composite. webs of filled, .wrapped container. elements are advanced toont-oft rollerslll and 42..secur,ed.'to shafts .4i-i and. Ml respectively` journall'ed fin frame l. The .knife :i fastened .to roller vlll. is arranged.'

to .cut .the traveling. composite webs `of container elements transversely to provide individual filled.` From. the cut-oli vrollers 4| and 1&2`A they packages are advanced to .a delivery table'll.'

packages.

where they. 4arepicked up for` use.

It'will `be..understood .without need `.of illustrationthatany suitable motor may be .employed` for operating-the machine, and that proper gear.-A ingis .employed inpractice to cause the various roliste rotate at=uniformspeed to effect travel,

ccntrol,..and fabrication of the web through the. machine inorder-.that the operation of the .several l units thereof will be .eiected in suitable sequence.

While Ihaveillustrated and vdescribed the preferred constructionof .my machine vand the preferred method for carrying out my invention.. theseareicapable -of variation and modification,v

without departing -from the spiritof the invention.

It .willbe obvious to .those skilleclinthe packaging` art that. the web materials may. be ypres treatedy with heat sealingcoatingathus requiring;v

The web assem the substitution of heat sealing and pressure devices for the adhesive applying mechanisms shown in this instant application.

Having described my invention, what I claim is:

i. The method of making filled wrapped paci:- ages by a sequence of operations; consisting in advancing a web of flatnexibla. wrapper material having positioned longitudinally thereon and transversely spaced apart from each other, and

inward from the side margins of the Wrapper web, two webs of single faced transversally corrugatedrmaterial with the ends oi the corrugations openrsevering the web of flat flexible wrapper material toprovidentwo web assemblies, each con posed. otaiwebofviiat wrapper material with a web-sois.. corrugated material positioned thereon; cutting the crown of each corrugation near the margin" of rthe"ccr-rugated web to provide a weakened/point so that the pacha-ges may be easily broken for dispensing the contents; adhesively treatingtheinner toplmargins of the, fiat wrap per material; foldinggpressing and. securing the inner margin Voi ,eachL web of wrapper material-"to the topinner margin of each correspondingwebi of corrugated materiaLl thus closing` the inner openings of the corrugated materia-l; turning both' web.. assemblies to .a vertical positiom. filling. the

flutes of the corrugationof each' web assembly.

with' a commodity; adhesively treatingthe topm inner margins of the flat wrapper material; fold.-4

ing, pressing securing the top margin of each' web of the dat. wrapper material tothe .top inner margin to each corresponding web of corrugated material,` thus closing the openings of veach web f of oorrugatedmaterial and ltransversely lsevering the webs to provide individual commodity units.

2. Themethod of making filled commodityxcontainer units byf'a sequence of operations;` Iconsiste ingfin advancing a web of wrapper material fh'aving positioned lengthwisethereon and spaced apart from eachother., andinward from the side' margins of the wrapper web, two web'soflsingle faced transversely corrugatedflute formedlinaterial with theendso lthe flutes .open severing .th'eweb of.wrapper material. .to provide two web. assemblies. adhesively,r treating.` the inner top. margins of the wrapper material; folding, press.

ing and securing the inner margin of each webof wrapperfmaterialto the top-inner marginbf .each corresponding-web ofA corrugated, flute .formed material; :turning both webl assemblieszfto. a,,v,er

tical position; filling the utes of the corrugation,

ofleach Web-.assemblywith aicommodity; adhesively treatingfthe topf inner -margin, of .the .swr-gaps.

p enmaterial; folding, pressing andsealing the topqmarg-in of `eachwebof the-wrapper matenial.- to', theetopf inner margin of 2 each corresponding-g web", of vcorrugatedr flutev formed materiaL; `and;q transversely; severing the web vtorprovidel.V indi-.

vidual lcommodity container units.

3." The method of making Vfilled Iwrappedr-packages b'y'a-seoluenceA ofoperations; consist-iugm: advancing a web of wrapper material 'Y having positioned longitudinally 'thereon two webs :oiflute formed material; severing the web of wrap.-y per material to provide two web assemblies; foldv ing, pressing and securing the inner margin ofv each web of wrapper material to thetop innerl margin of each corresponding web of flute formedt material; filling the flutes of each web assembly with a commodity; folding, pressingand'securing the unsecured margin of each web ofthe wrapper--- material' to the open end margin'of each corresponding 'web of flute formed material; -and'r transversely severing the web to provide individual commodity units.

4. The method of making filled Wrapped paoliages; consisting in advancing a web of Wrenner material and two Webs oi finte formed materi severine' the web of Wrapper material to provide two web assemblies; folding, pressing and se curing one margin of each web of Wrapper ma serial to a margin of each corresponding web of flute formed material; illling the flutes of eaen web assembly; folding, pressingr and securing the unattaclied margin of each Web of Wrapper material to the open enel margin of each oorrespending web of nnte formed material, and transversely severing the web.

5. A machine for making filled, Wrapped paci:w ages; comprising means to advance a web ei Wrapper material having" positioned thereon two Webs of ute formed material; a outting to slit the Wrapper material to provide two web assemblies; support for 'the web assemblies as they advance; means for applying a ooat oi liesive to the top inner margins of the Wrapper 6 material, mechanism to fold and secure the adhesively treated margins of wrapper material to 'the 'top inner margins of the finte formed material; mechanism to advanee the web assemblies; means to turn the web assemblies; a device to illi the fintes as the wel) assemblies are advanced; mechanism to apply adhesive and folli the top margins of eaoii wrapper web against the top inner margin of each finte formed web; means 'to advance eaen web assembly, mechanism to out the filled finte formed web assemblies to provizle individual, nileri, Wrapped, naci-:ages

RSDERECK WM. HOAG.

Referenoes Cited in the file of this patent UNITED STATES PATENTS 

